ASTROSAT CZTI

Data Quality Report

Orbit 44096

Creation date: 2024-06-27T22:59:20.548066
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A13_038T01_9000005944_44096cztM0_level2.fits modeM0/AS1A13_038T01_9000005944_44096cztM0_level2_quad_clean.evt
Size (bytes)682,511,04085,199,040
Size650.9 MB 81.3 MB
Events in quadrant A13,713,08060,365
Events in quadrant B3,432,369742,920
Events in quadrant C2,950,293725,219
Events in quadrant D4,695,649626,719

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0448816
B0143491
C0129231
D0182601

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6071571094.053698%
B60721642.700922%
C6072360.592885%
D60723796.241765%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7306 6070 4228 4228 57.87% 69.65%
B 7307 6073 56 56 0.77% 0.92%
C 7306 6072 6 6 0.08% 0.10%
D 7306 6072 249 249 3.41% 4.10%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 15 223 11950634 193347.09 296 291 61.8
A 10 83 516456 8351.14 296 291 61.8
A 15 222 75554 1217.7 296 291 61.8
B 4 171 173668 1242.32 718 696 139.2
B 0 200 111739 797.53 718 696 139.2
B 15 36 108588 774.9 718 696 139.2
C 14 96 85537 504.11 716 722 168.2
C 3 233 33164 192.82 716 722 168.2
C 14 254 29973 173.86 716 722 168.2
D 1 52 455686 2586.9 694 673 175.9
D 12 222 323231 1833.85 694 673 175.9
D 13 249 195254 1106.26 694 673 175.9

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter